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15 Cards in this Set
- Front
- Back
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prime meridian
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the imaginary line at zero meridian used to measure longitude east to west
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loess
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wind-blown silt and clay sediment that produces very fertile soil.
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humus
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organic material in soil.
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biosphere
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all the parts of the earth where plants and animals live
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aquifer
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an underground layer of rock that stores water.
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tectonic plates
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an enormus moving shelf that forms the earth's crust.
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fault lines
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line determined by the intersection of geological fault and the earth's surface.
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tundra
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the flat treeless lands forming a ring around the artic ocean
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biomes
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a regional ecosystem
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steppe
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the temperate grassland region in the northern hemisphere.
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acculturation
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the cultural change that occurs when individuals in a society accept or adopt an innovation.
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the soviet union
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former federation of communist states in europe and asia from 1922 to 1991.
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british empire
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a group of colonies, protectorates, and other territories brought under British rule after the late 16th century.
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irish potato famine
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a starvation in ireland from 1845 to 1849
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ethnic cleansing
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the policy of trying to eliminate an ethic group
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